GBPUSD's fall from 1.5779 extended to as low as 1.5561. Further decline is still possible later today, and next target would be at 1.5500 area. Key resistance is now at 1.5779, a break above this level will indicate that the downtrend from 1.6164 had completed at 1.5423 already, then the following upward move could bring price back to 1.6500 zone.